Allen & Heath 19 XB-14 User Guide
T1
LR
PAN
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SIGNAL
PFL
PEAK
PGM
FDR
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5
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40
50
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TELCO CHANNELS 1&2
ON Switch
This mechanically latching switch operates the TELCO channel mute cir-
cuitry, turning the signal to the PGM, MIX B and Aux buses on or off.
The switch is illuminated green when pressed.
There is an option to disable the switch (make permanently ON) using the
option switches on the rear-panel. If this is activated, then the switch will
be illuminated green regardless of whether it is pressed or not.
SIGNAL & PEAK LEDs
The Signal LED illuminates when the pre-fader signal level is above –15dB.
The Peak LED illuminates and stays on for around 0.5 seconds when a peak
level is detected (pre-fader signal) within 5dB of clipping.
PFL Switch
The PFL (Pre-Fade Listen) switch sends the channel signal to the PFL bus
and subsequently to the headphones/CRM speakers and the main L R me-
ters. Used for checking the audio signal before raising the fader or switching
on the channel or raising the fader.
Fader
The 100mm fader controls the level of the TELCO channel signal to the left
& right PGM bus, MIX B bus and post fade Aux.
The TELCO channel faders have fader start switching logic signals available
on the rear-panel remote interface connectors for control of external
equipment.
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